单选题
慢性龈炎的表现有（ ）。
发布日期：2021-03-18
疼痛明显
牙周袋形成
牙齿尚无松动
X线片示牙槽骨有水平吸收
牙齿移位
试题解析
牙龈炎
牙龈是牙周组织（牙龈、牙周膜、牙槽骨、牙骨质）之一，直接暴露于口腔中，直视可见，它是由角化上皮和结缔组织组成，覆盖着牙槽骨和牙根。牙龈病是局限于牙龈组织的病变，其中最为常见的是慢性龈缘炎，又称边缘性龈炎、单纯性龈炎，属于“仅与牙菌斑有关的牙龈炎”，是菌斑性牙龈炎中最常见的疾病。牙龈的炎症主要位于游离龈和龈乳头。也就是大家常说的牙龈炎。3～5岁的儿童即可发生，患病率和严重程度随年龄增长而逐步增加，至青春期达高峰。牙龈炎在儿童中男性略多于女性。发展中国家和地区高于经济发达国家。
- 就诊科室
- 口腔内科
- 常见症状
- 牙龈出血，牙龈局部痒、胀、不适及口臭。
- 常见病因
- 龈牙结合部堆积的牙菌斑及其中的有害物质长期作用于牙龈，引起炎症。
- 传染性
- 无
现有
现有是一个汉语词汇，拼音为xiàn yǒu，基本意思是现成的可以立即使用的。
- 中文名
- 现有
- 拼音
- xiàn yǒu
- 外文名
- available
- 解释
- 现成的可以立即使用的
慢性
慢性，汉语词语，拼音是màn xìng，意思是耐心，能忍耐的性情。
- 中文名
- 慢性
- 拼音
- màn xìng
- 出处
- 《水浒传》
- 外文名
- chronic
- 释义
- 耐心，能忍耐的性情
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